In anticipation of field work, the article will help to reveal the technical potential of the BDT 3 disc harrow, the photo of which you see, and will also introduce the opinion of the owners of the equipment. The material gives prices for the BDT 3 product and uses video and photographic materials.
Perhaps familiarity with the technical indicators of a harrow will be useful to you in the future. A video about the operation of the BDT 3 disc harrow is at the end of the article.
Purpose and design of the BDT 3 disc harrow
After harvesting grain crops, soil layers are used to develop layers. They are also used for cultivating virgin lands. They cut up the land after plowing and prepare it for the sowing campaign. Possibly effective use for stubble peeling and care of meadows and pastures. Its use is not limited in any way, so the harrow is used in all soil and climatic zones.
The trailed unit in question is used in two positions.
- In transport position.
- And in working position.
Disc harrow BDT 3 technical characteristics
Mounted, with a hydraulic control system, BDT 3, with a working width of 3.6 meters, is aggregated with tractors of the 3rd and 4th classes. Maximum penetration into the top layer of soil is 200 mm. In one hour it can cultivate from 2.5-3 hectares of land.
The angle of attack of the disk batteries is 6 0, 10 0, 14 0, 18 0, respectively. The dimensions of the disc harrow are L/W/H = 4800/3000/1520 mm; tire sizes for transport wheels are 6.5-16 inches. In addition, you should be satisfied with the soil penetration indicators:
- When peeling stubble 200 mm.
- After plowing 120 mm.
- On peat bogs, three passes at 250 mm.
Reviews from owners of the BDT 3 disc harrow
Many owners used disk tillers to till the land in the past. They say that they penetrate deeper into the soil in one pass than with a harrow. But the speed of tillage is slower:
Owners are satisfied with reliable fixation:
- angle of attack of disk sections;
- side frames of the harrow during transportation.
Price for disc harrow BDT 3
On request, the harrow can be purchased in Russia for RUB 250,000.00. On the secondary market, the cost, depending on the condition and manufacturer, ranges from 175,000.00 - 207,000.00 rubles. The trend of price changes depends on the seasonality of sales and the region. Price fluctuations can reach almost 100,000.00 rubles.
Summing up, we can say that the equipment is reliable and will work for the planned 6 years. Proper use can last much longer. And the possibility of purchasing on lease, or purchasing equipment with deferred payment, gives large farms and farmers the opportunity to efficiently cultivate the soil.
The BDT-7 disc harrow is a wide-cut tillage device. It is used in agriculture for processing soil made of dense rocks. The device is used after plowing areas and harvesting crops that require large reserves of moisture and nutrients, such as corn, cabbage and potatoes. BDT-7 is suitable for processing pastures and meadows. Using this unit you can:
- mulching;
- development of layers of perennial grasses;
- pre-sowing work with the soil;
- stubble peeling;
- early spring harrowing.
Technical specifications
Technical characteristics of BDT-7 are provided by the Ukrainian manufacturer Agrotekhkomplekt, which specializes in soil cultivation equipment. The operating speed of the disc harrow is 6–12 km/h. The productivity of the device ranges from 5.2 to 7.2 ha/h. Device dimensions: 4560x3800x1640 mm. Between the discs with a diameter of 62.5 cm there is a space of 220 mm. The processing depth of the unit reaches 20 cm.
The weight of the BDT-7 disc harrow is 4280 kg. It can work with various tractors, classes of which range from 1.4 to 4. Models K-700 and T-150 are used. The working width is 7 m. The maximum transport speed of the equipment is 20 km/h. It is possible to regulate the angle of attack of the batteries. It changes to 12, 15 and 18 degrees. Ground clearance indicators - 25 cm.
Operating principle of the disk unit
The disc harrow is made of an articulated frame, which contains three sections, a hydraulic drive and batteries of cut-out spherical disks.
Hydraulic cylinders and braces are used to lift the side sections into transport position. To do this with the middle sections, the axle of the transport wheels must be rotated.
In order to adjust the depth of processing, the angle of attack of the BDT-7 is changed. You need to loosen the battery mounting nut. After this, it will be possible to place special pins in the holes that are located on the frame bars. Then it is necessary to move the batteries to their extreme position, tighten the nuts and achieve uniform movement through the tractor’s hydraulic system. To do this, you need to change the position of the BDT-7 harrow trailer.
Disc harrows
Disc harrows come in light (field and garden) and heavy types. Light harrows are used for processing plowed land, post-plowing loosening of turfy layers, peeling stubble, and refreshing weakly turfed meadows. Garden harrows are designed for cultivating the soil between the rows of gardens. The processing depth of garden harrows is up to 10 cm. Heavy harrows are used for cutting up turf layers after plowing virgin and fallow lands, disking waterlogged soils, cultivating meadows and pastures, applying fertilizers and crop residues. Processing depth up to 20 cm.
The working body of light disc harrows is a steel pointed spherical disk with a diameter of 450 mm to 510 mm (Figure 2,a). Heavy disc harrows have cut-out discs with a diameter of 660 mm (Figure 2, b), which penetrate well into the soil and intensively crush plant residues. Several disks mounted on an axis form a battery. The disks on the axis are placed at a certain distance from one another, and spacer bobbins are inserted between them. The axle is installed in bearings 11 and the battery rotates while moving.
Figure 2 Discs: a. disc of a light harrow, b - disc of a heavy harrow.
The batteries are mounted on the frame in two rows at an angle to the direction of movement. The front batteries work in a heap, the rear batteries in a heap. For better soil crumbling, the disks of the rear batteries are offset relative to the disks of the front batteries. The angle between the plane of rotation of the disk and the line of direction of movement of the harrow is called the angle of attack. It can be changed from 0 to 21 degrees. When processing dry and hard soils, the angle of attack is increased; when disking wet and light soils, it is reduced.
When the harrow moves, the discs engage the soil and rotate. The cutting edge of the disc cuts off the soil layer and lifts it onto the inner spherical surface. Then the soil falls from a certain height and is moved to the side by a disk. As a result of moving along the disk and falling, the soil crumbles, partially turns around and mixes. As the angle of attack increases, the discs sink deeper into the soil, and its crumbling increases. The depth of tillage is set by changing the angle of attack and the pressure of the discs on the soil. The pressure is adjusted by changing the ballast mass or the compression force of the pressure springs.
Compared to tine harrows, disc harrows clog less, cut thin roots and roll over thick ones. The discs are not suitable for working on rocky soils, as their blades become chipped.
Heavy disc harrow BDT-3.0
The BDT-3.0 heavy disc harrow is designed for developing primary plowing layers raised by bush-marsh plows on mineral and peat soils; in addition, the harrow can be used for caring for meadows and pastures, as well as cutting up blocky plowing.
The harrow is used in all soil and climatic zones. The harrow should provide good loosening of layers to a depth of 16 cm on mineral soils, and on peat soils up to 25 cm in two passes. It is recommended to carry out the second pass at an angle to the direction of the first pass (transverse processing). It is prohibited to operate the harrow on rocky soils.
Table 1. Technical characteristics of the BDT-3.0 harrow
|
Name |
Meaning |
|
Trailed |
|
|
Productivity per hour of pure work, ha. |
|
|
Operating speed, km/h. |
|
|
Transport speed, km/h. |
|
|
Working width, m. |
|
|
Weight (without tools and spare parts), kg. |
|
|
Weight of tools and spare parts, kg |
|
|
Dimensions, mm In working position: |
|
|
In transport position: |
|
|
Ground clearance, mm. |
|
|
Diameter of working bodies, mm. |
|
|
The distance between the disks in the assembled section in the places where the bobbins fit |
|
|
Angle of attack of disks, degrees. |
|
|
Processing depth, see After plowing When peeling stubble |
|
|
Aggregation |
Tractors of class 3-7 tons. |
The two front batteries work “waddle”, the two rear batteries work “waddle”. The processing depth of 6-18 degrees is adjusted by changing the angle of attack of the battery. The angle of attack is selected depending on the working conditions: the greater the angle of attack, the greater the depth of processing and the more complete the cutting of plant residues.
Four disk batteries 11 are attached to frame 4 (Fig. 3) using brackets. The batteries are composed of spherical cut-out disks with a diameter of 660 mm mounted on a round axis. The front and right rear batteries have seven discs each, the left rear has eight. An additional battery disk trims the gaps remaining between the front batteries. The discs are cleaned with scraper scrapers 10.
The uniformity of disc depth is adjusted using the frame leveling mechanism. The lever 5 connected to it is connected by an adjusting screw 2 to the towbar 1, and by a rod 6 to the knuckle 9 of the cranked axle 8. When screw 2 rotates, the lever 5 moves the rod 6, which by the fist 9 turns the axle with the support wheels.
The depth of processing is adjusted by changing the angle of attack of the disks (12, 15 and 18 degrees), moving apart or moving the outer ends of the batteries.
The harrow is moved into the transport position by hydraulic cylinder 7, lowering wheels 3 down.
Figure 3. Heavy disc harrow BDT-3.0 1 - trailed device, 2 - adjusting screw, 3 - wheel, 4 - frame, 5 - lever, 6 - traction, 7, 5 - hydraulic cylinders, 8 - cranked axle, 9 - fist, 10 - scraper, 11 - batteries.
The harrow's working width is 3 m, productivity 1.75 ha/h, working speed 8-10 km/h, processing depth up to 20 cm.
The harrow is aggregated with tractors of the 3-4 t traction class.
Among the various types of additional equipment used in combination with tractor equipment in the agricultural sector, the special harrow BDT 3 is of great importance. It allows you to effectively cultivate land plots of an impressive area and is of the disk type.
Before studying the most significant technical characteristics of BDT 3, it is necessary to consider in more detail the main features of this type of equipment. The harrow is designed for cultivating neglected, plowed lands, as it does an excellent job of crushing small blocks, as well as mulching the soil.
The main working element of this device is batteries constructed from rotating disks. Their diameter can vary from 40 to 50 cm, they are mounted at a certain angle for greater efficiency. The BDT 3 model belongs to the category of heavy units and has an impressive list of advantages in comparison with lighter analogues.
Among them, worthy of mention:
- constant processing depth;
- high efficiency of weed removal;
- no need for additional maintenance operations;
- excellent performance.
The harrow allows you to cultivate the soil
Due to its features, this unit is widely used in the agricultural sector and is widely used for cultivating various types of soil. The battery consists of several disks that are mounted on the same axis and move synchronously.
The front batteries are responsible for the primary tillage of the soil, and the rear batteries are responsible for the formation of a distinct harrow and soil rejection.
Purpose
The heavy disc harrow is ideal for harrowing agricultural land after successful harvesting of grain plants, as well as in preparation for sowing. The device is often used to care for pastures, meadows and other areas intended for grazing.
Due to its technical characteristics, as well as its reliable design, the model is used for processing various soils in most climatic zones, which makes it a universal solution.
Significantly expands the scope of application and the ability to adjust the unit using a special adjustment screw. It is connected to a lever, which is responsible for moving the rod, due to which it is possible to turn the axle with the disks.
Specifications
As mentioned earlier, one of the main reasons for the popularity of this unit intended for land cultivation is its outstanding technical characteristics, as well as its simple and reliable design. Among the most important indicators characteristic of the device, it is advisable to mention:
- processing width/depth - 3m/20cm;
- number of working units - 29 pcs;
- distance between disks - 22 cm;
- productivity (depending on soil type) - 1.8 ha/h;
- movement speed during processing - 8-10 km/h;
- unit dimensions (LxWxH) - 4.64x3.37x1.15 m.
Harrow disc
Due to its weight - 1.75 tons, the equipment belongs to the heavy class, which requires the presence of appropriate power in the tractor equipment that is planned to be used in conjunction with the harrow. The cost of the product can vary significantly and depends on the condition and year of manufacture of the equipment. A new unit will cost 250 thousand rubles, and a used one in good condition can cost about 175 thousand.
Principle of operation
The equipment boasts a simple operating principle. The working elements (disks) begin to rotate as they move, and thanks to their pointed parts, they cut off the layer of earth. It, in turn, rises to the inner surface of the disk and, having risen to the required height, is thrown to the side.
This allows you to crush small fragments of soil, turn it over and mix it. If you want to increase the processing depth, you can increase the working angle, which will allow the discs to penetrate the soil more effectively and improve the quality of harrowing. Thanks to the simple principle of operation, even unqualified personnel can use this type of equipment, provided they have the minimum necessary knowledge.
In anticipation of field work, the article will help to reveal the technical potential of the BDT 3 disc harrow, the photo of which you see, and will also introduce the opinion of the owners of the equipment. The material gives prices for the BDT 3 product and uses video and photographic materials.
Perhaps familiarity with the technical indicators of a harrow will be useful to you in the future. A video about the operation of the BDT 3 disc harrow is at the end of the article.
Purpose and design of the BDT 3 disc harrow
After harvesting grain crops, soil layers are used to develop layers. They are also used for cultivating virgin lands. They cut up the land after plowing and prepare it for the sowing campaign. Possibly effective use for stubble peeling and care of meadows and pastures. Its use is not limited in any way, so the harrow is used in all soil and climatic zones.
The trailed unit in question is used in two positions.
- In transport position.
- And in working position.
Disc harrow BDT 3 technical characteristics
Mounted, with a hydraulic control system, BDT 3, with a working width of 3.6 meters, is aggregated with tractors of the 3rd and 4th classes. Maximum penetration into the top layer of soil is 200 mm. In one hour it can cultivate from 2.5-3 hectares of land.
The angle of attack of the disk batteries is 6 0, 10 0, 14 0, 18 0, respectively. The dimensions of the disc harrow are L/W/H = 4800/3000/1520 mm; tire sizes for transport wheels are 6.5-16 inches. In addition, you should be satisfied with the soil penetration indicators:
- When peeling stubble 200 mm.
- After plowing 120 mm.
- On peat bogs, three passes at 250 mm.
Reviews from owners of the BDT 3 disc harrow
Many owners used disk tillers to till the land in the past. They say that they penetrate deeper into the soil in one pass than with a harrow. But the speed of tillage is slower:
Owners are satisfied with reliable fixation:
- angle of attack of disk sections;
- side frames of the harrow during transportation.
Price for disc harrow BDT 3
On request, the harrow can be purchased in Russia for RUB 250,000.00. On the secondary market, the cost, depending on the condition and manufacturer, ranges from 175,000.00 - 207,000.00 rubles. The trend of price changes depends on the seasonality of sales and the region. Price fluctuations can reach almost 100,000.00 rubles.
Summing up, we can say that the equipment is reliable and will work for the planned 6 years. Proper use can last much longer. And the possibility of purchasing on lease, or purchasing equipment with deferred payment, gives large farms and farmers the opportunity to efficiently cultivate the soil.